SWMM56

Subject:    How is  Capillary   Suction   Head   Used  in  SWMM   5   Green - Ampt ? How sensitive is the infiltration loss and rate to the  capillary   suction   head  parameter in the  SWMM   5   Green - Ampt   infiltration method.   Figure         1 shows how the total infiltration loss and total loss rate vary as you change the  suction   head  from 12 to 6 to 3 inches.    Internally the  suction   head  is  used  in infil.c of  SWMM   5  by adding the  suction   head  to the ponded water on the pervious area in the parameter c1 of the implicit  Green - Ampt  SWMM5 solution. C1 =  ( Suction   Head  + Depth of Ponded Water) * IMD or Initial Moisture Deficit Figure 1.   The sensitivity of the total infiltration loss to the  capil...

Subject:    How is Capillary Suction Head Used in SWMM 5 Green-Ampt? How is Capillary Suction Head Used in SWMM 5 Green-Ampt? by  dickinsonre Subject:    How is Capillary Suction Head Used  in SWMM 5 Green-Ampt? How sensitive is the infiltration loss and rate to the capillary suction head  parameter in the SWMM 5 Green-Ampt   infiltration method.   Figure         1 shows how the total infiltration loss and total loss rate vary as you change the suction head from 12 to 6 to 3 inches.    Internally the suction head is used in infil.c of SWMM 5 by adding the suction head to the ponded water on the pervious area in the parameter c1 of the implicit Green-Ampt SWMM5 solution. C1 =  (Suction Head + Depth of Ponded Water) * IMD o...